// Water Quality Data Source for MCP Server
// MCP服务器的水质数据源
class WaterQualityDataSource {
  constructor() {
    this.data = {
      turbidity: 0, // 浊度
      ph: 7,
      residualChlorine: 0, // 余氯
      temperature: 20,
      cod: 0, // 化学需氧量
      timestamp: new Date()
    };
    this.simulateData();
  }

  // Simulate real-time water quality data
  // 模拟实时水质数据
  simulateData() {
    setInterval(() => {
      this.data.turbidity = Math.random() * 5; // NTU
      this.data.ph = 6.5 + Math.random() * 1; // pH 6.5-7.5
      this.data.residualChlorine = 0.2 + Math.random() * 1.8; // mg/L
      this.data.temperature = 15 + Math.random() * 15; // Celsius
      this.data.cod = 10 + Math.random() * 50; // mg/L
      this.data.timestamp = new Date();
    }, 5000); // Update every 5 seconds
  }

  // Get current water quality data
  // 获取当前水质数据
  getData() {
    return this.data;
  }

  // Execute command (e.g., calibration)
  // 执行命令（例如校准）
  executeCommand(command) {
    console.log(`Executing command on WaterQualityDataSource: ${command}`);
    console.log(`在WaterQualityDataSource上执行命令: ${command}`);
    // In a real implementation, this would interact with actual sensors
    // 在实际实现中，这将与实际传感器交互
    return true;
  }
}

module.exports = WaterQualityDataSource;